6423428 has 12 divisors (see below), whose sum is σ = 12262992. Its totient is φ = 2919720.

The previous prime is 6423427. The next prime is 6423449. The reversal of 6423428 is 8243246.

It is a self number, because there is not a number n which added to its sum of digits gives 6423428.

It is not an unprimeable number, because it can be changed into a prime (6423427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72950 + ... + 73037.

It is an arithmetic number, because the mean of its divisors is an integer number (1021916).

Almost surely, 2^6423428 is an apocalyptic number.

It is an amenable number.

6423428 is a deficient number, since it is larger than the sum of its proper divisors (5839564).

6423428 is a wasteful number, since it uses less digits than its factorization.

6423428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146002 (or 146000 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 6423428 is about 2534.4482634293. The cubic root of 6423428 is about 185.8898256843.

The spelling of 6423428 in words is "six million, four hundred twenty-three thousand, four hundred twenty-eight".